论述图书馆标准书目著录项目已不能满足读者直观、高效地了解海量馆藏资源信息概貌的需求,受制作成本和体系所限,MARC元数据无法很好地承载拓展著录内容、详尽揭示馆藏资源的职能;而DC元数据的方法论和XML这种信息编码标准的出现,为拓展目录元数据,改变传统书目记录的扁平化结构,建立书目记录之间、书目记录中各著录内容之间、书目记录所描述的资源与其关联资源之间的关系提供可能。 Discussed the library standard bibliographic description project has been unable to meet the readers intuitive and efficient understanding of the vast reserves of resource information profile needs, subject to production costs and system constraints, MARC metadata can not be well carried to expand the bibliographic content, revealing the functions of the collection of resources ; And DC metadata methodology and the emergence of XML such information coding standards, to expand directory metadata, change the traditional flat structure of bibliographic records, the establishment of bibliographic records, bibliographic records between the bibliographic records, bibliographic records The relationship between the described resource and its associated resource is possible.